Stabilizer for dental motor controls



April 12, 1932. T E. BRALY 1,853,402

STABILIZER FOR DENTAL MOTOR CONTROLS Filed April 21, 1931 Patented Apr. 12, 1932 onir L STATES THOMAS EDWARD BRALY, F GHATTANOOGA,TENNESSEE STABILIZER ron DENTAL MOTOR, CONTROLS Application filed April 21, 1931. Serial No. 531,836.

This invention relates to foot actuated controls for dental motors, and more particularly to a stabilizer or means for holding such controls against accidental movement on slippery floors.

The invention has for one of its objects to provide a stabilizer of the character stated which shall be adapted to rest upon the floor close to the base of the dental chair, which shall be adapted to be secured against accidental movement by the chair base, and to which a dental motor control may be readily applied.

The invention has for a further object to provide a stabilizer of the character stated which shall be simple and durable, which shall be highly attractive in appearance, and which shall be capable of being manufactured and sold at a comparatively low cost.

With the foregoing and other objects in view, theinvention consists in the construction, combination and arrangement of parts hereinafter fully described and claimed, and illustrated in the accompanying drawings, wherein Figure 1 is a view inside elevation illustrating the stabilizer in use.

Figure 2 is a top plan view of the stabilizer, and Figure 3 is a sectional view taken on the plane indicated by the line 33 of Figure 2.

Referring in detail to the drawings, 1 designates the base of a dental chair, 2 the foot actuating control of a dental motor, and 3 the stabilizer for holding the control against accidental movement while being actuated. 4 designates the pedal lever for actuating the control 2, and 5 designates the cable leading from the control to the motor, not shown. The stabilizer 3 comprises a circular base 6 upon which the control 2 rests, an arcuate flange 7 extending upwardly from the periphery of the base and contacting with the control to hold the latter against displacement from the base, and a flange 8 extending from the base and adapted to be positioned beneath the chair base 1 to hold the stabilizer against movement with respect to the chair. The base 6, control retaining flange 7, and stabilizer anchoring flange 8 are formed integrally fromsheet metal. The anchoring flange 8 extends radially from the base 6 and graduall 7 increases in width outwardly or in a direction awayfrom the base. The retaining flange 7 surrounds all portions of the base 6 with the'eXception of that portion of the base from which the anchoring flange 8 extends, and the ends'of the retaining flange are arranged in alinement with the inner ends of the side edges of the anchoring flange.

The anchoring flange 8 is provided with a spring clip 9 with which the cable 5 is en gaged at a point close to the control 2 so as to hold the control, against turning movement on the base 6. c As the base 6 and anchoring flange 8 are coplanar they willlie in full abutting contact with the floor, and the anchoring flange may be readily positioned beneath the chair base 1 so as to permit the chair to be utilized for the purpose of holding the stabilizer 3 against accidental movement on hardwood and other slippery floor coverings such as linoleum or the like. The retaining flange 7 which surr,

rounds and contacts with the inner portions J of the control 2, holds the control against horizontal displacement from the stabilizer,

and the engagement with the cable 5 of the clip 9 holds the control against turning movement on the stabilizer while the foot lever 4 is being actuated.

From the foregoing description, taken in connection with the accompanying drawings, it should be apparent that the stabilizer may I be readily anchored to the floor, that the control may be readily applied to the stabilizer, and that the control will be positively held against accidental movement while being actuated.

While I have described the principle of the invention, together with the structure which I now consider the preferred embodiment thereof, it is to be understood that the structure shown is merely illustrative and that such changes may be made, when desired, as fall within the scope of the invention as claimed.

What is claimed is 1. A stabilizer for holding a dental motor control against accidental movement, comprising a base upon which the control is to he placed, an upstanding flange surrounding the greater portion of the base to hold the control against lateral displacement therefrom, an anchoring flange extending laterally from the base, and a clip carried by the flange for the reception of the cable connecting the control to the motor.

2. A stabilizer for holding a dental motor control against accidental movement, comprising a base upon Which the control is to be placed, an anchoring flange extending laterally from the base and increasing in .width in an outward direction, an upstanding flange surrounding the edge of the base for holding the control against lateral displacement from the base, the base and anchoring flange occupying a common plane and the upstanding fiange'extending from one side edge of the anchoring flange to. the other ,side edge thereof, and a clip secured to the anchoring flange close to the base. I

Intestimony whereof I hereunto afiix my signature.

THOMAS EDWARD BRALY. 

